单选题Wh.ch version of spanning tree is recommended for the enterprise campus？（）A CSTB MSTC STPD PVST+E PVRST+
单选题
Wh.ch version of spanning tree is recommended for the enterprise campus？（）
A
CST
B
MST
C
STP
D
PVST+
E
PVRST+
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